WiebeTech Programmable Mouse Jiggler MJ-3 - 30200-0100-0013 Dimensions (WxDxH): 0.8 in x 0.6 in x 0.3 in Features: LED indicator, programmable System Requirements: Microsoft Windows Server 2003, Apple MacOS X 10.4.x or later, Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Vista / 7 / 8 / 8.1